Automatic lubricator.



No. 793,264. PATENTED JUNE 27, 1905. E. W. BAIRD.

AUTOMATIC LUBRICATOR.

APPLIOATION rum) NOV. 30. 1904.

WITNESSES: 5 INVENTUH 5 -fula f1) 9504B m. can M A TTUBNEV.

UNTTED STATES Patented June 27, 1905.

PATENT EETcE.

EDGAR ll". BAIRD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO S'LANDARDAUTOMATIC LUBRICATOR COMPANY, OF CAMDEN, NEV JERSEY, A CORPORATION OFNE\V JERSEY.

AUTOMATIC LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 793,264, dated June'i', 1905.

Application filed November 80, 1904- Serial No. 234,852.

To It mil/07m it 71mg concern:

Be it known that I, EDGAR \V. Bum), a citizen ot' the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain Improvements in AutomaticLubricators, of which the following is a specification.

This invention relates to mechanism for feeding a lubricant at the raterequired by the journal-bearing to which it is applied; and it has forits leading object the production of a simple and accessible mechanism,readily constructed, assembled, and dissociated, that will produceincreased flexibility and regularity of action.

ln the accon'ipanying drawings, Figure 1 represents a vertical sectionalview of my invention; and Fig. 2 represents a transverse sectional viewthereof, taken on the line 2 2 of Fig. 1.

As shown in the drawings, the casing 1 is integrally connected with anddepends from a yoke 2 for supporting it upon a motor-frame or othersuitable member in position to deliver to a journal-bearing to belubricated thereby. Through the bottom of the casing is a port 3,surrounded by a ring A, which engages a coiled spring 5, resting uponthe bottom. A ball 6 is supported by the spring, the top coil of thespring having the form of a ring which provides a suitable seat for theball. The ball acts as a valve for a port or passage 7 in a bushing orhollow plug 8, which tits in the top of the casing. The plug has theexternal thread 9 engaging the casings internal thread 10, by which theposition of the plug may be adjusted to regulate the compression of thespring and the pressure of the valve on its seat on the port. The recess11 in the plug receives the end of a tube 12, having a flange 13thereon, the flange lying between the gasket 14: on the tube and thegasket 15 in the bottom of the recess.

A bushing or hollow plug 16, sleeved on the tube 12, is engaged withinthe recess 11 by the screw-threaded connection 17, formed by theinternal threads of the plug 8 and the external threads of the plug 16.The plug 16 is screwed into the plug 8 to the extent required forholding the flange 13, which is swiveled thereby, and the plugs arefixed together by a key 18. A ring or llanged top 19 on the plug 8 isprovided with the peripheral corrugations 20, which are adapted to beengaged by a springZl. This spring has its lower end fixed, as bysetting it in the casing, its resiliency permitting it to be withdrawnfrom engagement with the ring when it is desired-to move the plug 8 andcausing it when released to hold the ring, acting a latch to secure theplug in the position to which it is adjusted. The top of the casing iscovered by a cap 22, which is sleeved 0n the tube and is screwed intothe ring 23 on the yoke 2.

Having described my invention, 1 claim 1. A lubricator comprising acasing having a port therein, a coiled spring supported in said casing,a valve supported by said spring, and a device fitted in said casingandhavinga port therein registering with said valve, said device beingadjustable to vary the pressure of said valve on said port,substantially as specified.

2. A lubricator comprising a casing, a coiled spring supported by saidcasing, a ball resting freely on said coiled spring, and a plugadjustable in said casing and having a port registering with said ball,substantially as specified.

3. A lubricator comprising a casing with an outlet therefrom, a coiledspring supported on the bottom of said casing, a ball-valve supported bysaid coiled spring, a recessed plug which screws into said casing, saidplug having a port which is controlled by said valve, a tube having anend in said recess, and means for holding said tube in said recess,substantially as specified.

4. A lubricator comprising a casing with an outlet therefrom, a coiledspring supported on the bottom of said casing, a ball-valve sup portedby said spring, a recessed plug adjustable in said casing and having aport registering with said valve, :1 tube swiveled in said recess, aring carried by said yoke, and a cap engaging said ring, substantiallyas specified.

In testimony whereof I have hereunto set my hand, this 28th day ofNovember, 1904:, in the presence of the subscribing Witnesses. 5

EDGAR W. BAIRD.

Vitnesses:

ROBERT JAMES EARLEY, UTLEY E. CRANE, Jr.

